DS is a bit of an elephant at times too, Dr Tal! We're off the ground, on lino and carpet, and I reckon that makes a huge difference too. We used to have a treadmill, but it was way too noisy on the floors, so DH pounding away at 3:30am before work would wake me up and me exercising at 8pm when DH wanted to sleep was annoying for him. Luckily we got rid of it, lol!

Yep, pitter patter.... maybe it's referring to tiny birds or kittens or puppies???